Brian Sperlongano efa6b27fba
Render POIs for large universities at low zoom (#1479)
This PR adapts the code used in #1457 to allow POIs to render up to z10 for very large features. I set the threshold at a very conservative value of 10% of a tile. Thus, it will render if an area POI covers at least 10% of a tile at a given zoom. Only for 'university' and  'college'.

Additionally, this consolidates a double UNION ALL on the same table with a WHERE/CASE combination, which is simpler.
2023-01-19 19:29:29 +01:00
..
2022-06-01 09:32:10 +02:00
2017-06-12 18:13:09 +02:00
2023-01-06 10:08:03 +01:00

poi

Docs

Read the layer documentation at http://openmaptiles.org/schema#poi

Mapping Diagram

Mapping diagram for poi

ETL diagram

ETL diagram for poi